Improved hinge-machine



NPETERS, PHOTOLITHOGRAPHER, WASHINGTON. D. CA

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JOSEPH H. BAIRD., O F OAKVILL; CONNECTICUT.

Letters Patent No. 101,210, dated March 29, 1870.

IMPRO'VED HINGE-MACHINE.

The Schedule referred to in these Lettori Patent and making part of thesame.

I, JOSEPH H. BAIRD, of Oakville, in the county of New Haven and State ofConnecticut, have inventeda. new and improved Machine for AutomaticallyGountersinking and Milling Hinge-Blanks, of which the following is aspeciflcation.

Nature and Objects of the Invention.

Description of the Accompanying Drawings. Figure 1 is a front elevationof my improved ma- `chine.

Figure 2 is a sectional view through the line xx, g. 1.

Figure 3 is a top view of iig. l. Figure 4 is a sectional view throughthe line y y, iig. 3.

General Description.

The parts which constitute the frame of the Ina-- chine,`and whichsupport its various operative mechanism, consist of the side pieces A Aand plate B, rmly bolted and secured together.

The main shaft E is' held in bearings in the sideframes A A, andoperates the cams M, O, and N, secured upon it in proper position.

The first cam, M, operates the shaft F, upon which the feeders S S areadjusted.

The center cam, 0, actuates the frame D, carrying the countersinking andmilling-mechanism.

The'tnird cam, N, imparts the proper movements to the clamping-jaw W.

The feeding-mechanism consists of a series of fingers, is, held inadjustable bearings e upon the shaft F, which are so operated that theblanks laid -upon the feed-plate f are fed forward to the action of thecountersinksU U and cutters K K, the motions imparted to the fingersthrough the medium of the grooved cam M and arm P consisting of aforward, an upward, a backward, and a downward positive motion.

' The countersinking and milling-mechanism are held in bearings in thereciprocatin'g frame D, which slides in the guides C O, secured to theframe of the machine.

The countcrsinks U U are supported in the adjustable bearings V V, and,whenl raised to act upon the blank, they project through the apertures aa, immediately under the plate Y. This plate is so arranged als to holdthe blanks down when they are being acted upon by the counter-sinks.

The rotary cutters K K are arranged upon the shaft J, which is supportedby the adjustable arbors I I, held in the bea-rings G G upon thereciprocating frame D, and are arranged to admit of their being removedfor the purpose of inserting other cutters when desired, as, whencutting blanks of a larger size, for instance, it may be necessary toemploy a greater number of cutters, or others of a larger diameter.

The shafts of the cutters and countersnks are provided with pulleys L T,through the medium of which they are driven.

`Upon the plate B is held in bearings x x the shaft H, which operatesthe clamping-jaw W. This jaw holds the blank to the action of thecutters after it has been fed forward from the countersinks U U, and

' it is so operated bythe cam N, through the arm Q,

that the blank is clamped between its under surface and the uppersurface of the plate Z at the proper moment.

The jaw W is provided also with a stop, b, which serves to arrest themotion of the blank, and-to insure of its proper adjustment in relationto the cutters.

The guide d, screwed to the frame D, acts to keep the edge of the blankalways in a plane parallel with the axis ofthe cutters, and to preventits being accidentally thrown out of position before it is seized by theclamp W.

After the blank has been acted upon by the cutters, and released by theclamp, it is dropped through the opening c by the action of the feedersin presenting another blank to the cutters.

Operation.

The blanks are rst pressed out of the proper form, with holesto receivethe screws, and are then acted upon by a machine which bends theknuckles, after which they are ready to be fed to the countersinks andmilling tools, which act upon them as follows The blanks being laid uponthe table or feed-plate f, in regular succession, are fed forward'by thelingers S to the countersinks U. The iirst countersink acts upon thefirst hole in the first blank, and cuts it to the proper depth; thesecond vblank in the row, at the next movement of the feeders, isbrought in position to be acted upon by the rst countersink, which cutsalso the rst hole in this blank. As this feed movement continues, thefirst blank will be brought over the second countersink, so that it willact upon the second hole of the blank, and thus the rst holes in theblanks are cut in succession by the rst countersink, and the secondholes by the second countersink.

The parts of the machine which guide and hold the hinges during thesuccessive operations should be ad.

instable for hinges of. various sizes, which can easily be arranged byhaving slots for the screws which hold the parts, either in theparts`themselves or in the bed. 'l

As adjustable devices are ycommon to'all such machines, a furtherdescription is considered unnecessary.

C laims.`

. claim as my invention- 'V a 1. The combination, with the feeder S, ofthe coun? tersinks U, plate Y, and cam M, constructed substantially asdescribed and specified.

2. The combination, with the feeders S; of the coun- Witnesses:

Oms. W. GILLETTE, E. C. KNIGHT.

